node: This requires Node 0.12.x or greater.
$ yarn install
$ npm install -g grpc-tools$ cd $GOPATH/src/github.com/appleboy/gorush
$ protoc -I rpc/proto rpc/proto/gorush.proto --js_out=import_style=commonjs,binary:rpc/example/node/ --grpc_out=rpc/example/node/ --plugin=protoc-gen-grpc=`which grpc_tools_node_protoc_plugin`